Bob Martin Clear Flea Spot-On for Large Dogs directly kills fleas, tick, lice and prevents eggs from hatching.Key Benefits Kills fleas for up to 8 weeks Kills ticks for up to 4 weeks, helping to reduce the risk of tick-borne diseases Spot-On solution for dogs, containing FipronilIngredients & DosageLarge Dog 20-40kg - each pipette contains 268mg FipronilMedium Dog10-20kg - each pipette contains 134mg FipronilSmall Dog2-10kg - each pipette contains 67mg FipronilDirections for use: Read the instructions in the pack and double check that you have the right dose for your dog and their size. Bob Martin Clear Spot-On must be applied at 2 points at the base of the back of the dogs head and between the shoulder blades. If the dog is wearing a collar, remove it first so that it does not restrict application and dont put the collar back on whilst the treatment is on the skin. Remove a single pipette from the pack. Hold the pipette upright and snap off the top section of